Cold War, Pt. 2

S2, E2: Emily becomes the high school's new chess club coach in order to gain more intel on the suspects she and Sam have assembled. We continue to see flashbacks of Emily where she's allowed to enter a computer club and it's the first time the audience hears her real name, Grace. The mystery climaxes to a game of cat and mouse when Sam and Emily chase the killer down hallways during Violet's winter formal. Sam and Emily seem to have crossed a bridge after solving this crime but Sam's inquiry to Famous Ray comes back and he discovers the name CH1MERA.